If you don't want to know the circumstances surrounding Sunday's entry in this slideshow, then don't read any further...
[spoiler]Sunday's quote:
Ep #524 (1968) - Vicki - 'I don't know. But there MUST be some reason for the way you were looking at him.'
From "Robservations 6/17/02 - #523/524 - Jeff, Peter, Peter, Jeff"
When Vicki comes into the drawing room, Jeff is standing at an open window, gazing out into the darkness. Vicki asks him why he looked at Joe that way, as if he suddenly disliked him. Jeff gets pissy again--Didn't you hear me say I had a headache?
[/spoiler]
There is more detail in this period of Robservations but, again, we don't get much detail surrounding the quote. But, again, at least it does reference the main points of the quote...
And this is the second quote from this ep. The first (Joe - 'Jeff! Wake up! Wake up! You MUST have been having a pretty bad dream') was back on September 15th.